#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

int main() {
    int a,i,j;
    while (scanf("%d", &a) != EOF)
    { 
        for (i=1;i<=a;i++)
        {
            for (j=1;j<=i;j++)
            {
                printf("%d ", j);
            }
            printf("\n");
        }
    }
    return 0;
}